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91.
Baharuddin MR Sahid IB Noor MA Sulaiman N Othman F 《Journal of environmental science and health. Part. B》2011,46(7):600-607
A cross-section analytical study was conducted to evaluate the risk of pesticide exposure to those applying the Class II pesticides 2,4-D and paraquat in the paddy-growing areas of Kerian, Perak, Malaysia. It investigated the influence of weather on exposure as well as documented health problems commonly related to pesticide exposure. Potential inhalation and dermal exposure for 140 paddy farmers (handlers of pesticides) were assessed. Results showed that while temperature and humidity affected exposure, windspeed had the strongest impact on pesticide exposure via inhalation. However, the degree of exposure to both herbicides via inhalation was below the permissible exposure limits set by United States National Institute of Occupational Safety and Health (NIOSH). Dermal Exposure Assessment Method (DREAM) readings showed that dermal exposure with manual spraying ranged from moderate to high. With motorized sprayers, however, the level of dermal exposure ranged from low to moderate. Dermal exposure was significantly negatively correlated with the usage of protective clothing. Various types of deleterious health effects were detected among users of manual knapsack sprayers. Long-term spraying activities were positively correlated with increasing levels of the gamma-glutamyl transpeptidase (GGT) liver enzyme. The type of spraying equipment, usage of proper protective clothing and adherence to correct spraying practices were found to be the most important factors influencing the degree of pesticide exposure among those applying pesticides. 相似文献
92.
Adliene D Rääf C Magnusson A Behring J Zakaria M Adlys G Skog G Stenström K Mattsson S 《Journal of environmental radioactivity》2006,90(1):68-77
The presence of man-made gamma emitting radionuclides in the region within 32km radius of the Ignalina NPP/Lithuania has been investigated during the period 2001-2004, prior to the closure of the first of the two operating RBMK 1500-type reactors. Gamma spectrometric measurements of various terrestrial and aquatic plants as well as of soil samples showed moderate environmental contamination with the fission product (137)Cs and with the neutron activation products (60)Co and (54)Mn. Traces of the activation products (65)Zn and (110m)Ag were found in the nearest vicinity of the NPP. Activity concentrations were inhomogeneously distributed in the area of interest. Moss and algae samples showed the highest uptake of radionuclides. In addition to the gamma spectrometric measurements, the levels of (14)C were determined in the same bio-indicator samples using accelerator mass spectrometry. 相似文献
93.
Masood Najat Alkhadher Sadeq A. A. Magam Sami M. Halimoon Normala Alsukaibi Abdulmohsen Zakaria Mohamad Pauzi Vaezzadeh Vahab Keshavarzifard Mehrzad Maisara Sawsan Khaled Bin Break Mohammed 《Environmental geochemistry and health》2022,44(10):3687-3702
Environmental Geochemistry and Health - The aim of this a pioneering research is to investigate linear alkylbenzenes (LABs) as biomarkers of sewage pollution in sediments collected from four rivers... 相似文献
94.
Masumeh?Taheri Jalil?MehrzadEmail author Mohamad?Hosein?Mahmudy Gharaie Reza?Afshari Ahmad?Dadsetan Shakiba?Hami 《Environmental geochemistry and health》2016,38(2):469-482
Arsenic bioavailability in rock, soil and water resources is notoriously hazardous. Geogenic arsenic enters the body and adversely affects many biochemical processes in animals and humans, posing risk to public health. Chelpu is located in NE Iran, where realgar, orpiment and pyrite mineralization is the source of arsenic in the macroenvironment. Using cluster random sampling strategy eight rocks, 23 soils, 12 drinking water resources, 36 human urine and hair samples and 15 adult sheep urine and wool samples in several large-scale herds in the area were randomly taken for quantification of arsenic in rock/soil/water, wool/hair/urine. Arsenic levels in rock/soil/water and wool/hair/urine were measured using inductively coupled plasma spectroscopy and atomic absorption spectrophotometry, respectively. While arsenic levels in rocks, soils and water resources hazardously ranged 9.40–25,873.3 mg kg?1, 7.10–1448.80 mg kg?1 and 12–606 μg L?1, respectively, arsenic concentrations in humans’ hair and urine and sheep’s wool and urine varied from 0.37–1.37 μg g?1 and 9–271.4 μg L?1 and 0.3–3.11 μg g?1 and 29.1–1015 μg L?1, respectively. Local sheep and human were widely sick and slightly anemic. Hematological examination of the inhabitants revealed that geogenic arsenic could harm blood cells, potentially resulting in many other hematoimmunological disorders including cancer. The findings warn widespread exposure of animals and human in this agroecologically and geopolitically important region (i.e., its proximity with Afghanistan, Pakistan and Turkmenistan) and give a clue on how arsenic could induce infectious and non-infectious diseases in highly exposed human/animals. 相似文献
95.
Chandrasekar M. Senthilkumar K. Jawaid M. Alamery Salman Fouad Hassan Midani Mohamad 《Journal of Polymers and the Environment》2022,30(10):4427-4434
Journal of Polymers and the Environment - In this work, hybrid composites reinforced with Washightonia trunk fibres (GW)/Pineapple fibre (PALF) in bio-phenolic matrix were fabricated with... 相似文献
96.
Gity Mir Mohamad Sadeghi Ramin Shamsi Mahsa Sayaf 《Journal of Polymers and the Environment》2011,19(2):522-534
Chemical recycling of PET has been developed by various methods. Aminolysis is one of chemical recycling methods of PET has
been developed recently. The obtained product using aminolysis, Bis (2-hydroxy ethylene) terephthalamide (BHETA), has the
potential for further reactions to obtain useful products. There are few reports on usage of recycled BHETA from PET waste
to synthesis of polyurethanes. On the other hand, various biodegradable polyurethanes have been synthesized using polycaprolactone
diol. Therefore, caprolactone is a new potential in synthesis of biodegradable polyurethanes from PET waste. In this work,
novel biodegradable polyurethanes have been synthesized using BHETA. In this order, at first polyols with different molecular
weights have been synthesized through ring opening polymerization of caprolactone by BHETA, then urethane linkages were formed
using HDI (Hexamethylene Diisocyanate) without chain extender. Chemical, thermal, mechanical and dynamic mechanical properties,
biodegradability, morphology and UV resistance of synthesized polyurethanes have been investigated. 相似文献
97.
98.
Parviz MohammadiShaliza Ibrahim Mohamad Suffian Mohamad Annuar Sean Law 《Journal of Cleaner Production》2011,19(14):1654-1658
Effects of different pretreatment methods on sludge inocula were evaluated with respect to hydrogen (H2) production enhancement using palm oil mill effluent (POME) in a batch system. The experimental results showed that the pretreatment methods (chemical, acid, heat-shock, freezing and thawing, and base) at 35 °C and initial pH 5.5 had a positive influence on H2 production yield and chemical oxygen demand (COD) removal efficiency during the fermentative H2 production as compared to the control experiments (without pretreatment). Heat-shock pretreatment method was shown to be a simple and useful method for enhancing both H2 producing and COD removal processes from POME with highest H2 yield and COD removal efficiency at 0.41 mmol H2/g COD and 86%, respectively. 相似文献
99.
Seiedeh Aghileh Mirsadeghi Mohamad Pauzi Zakari Chee Kong Yap Azadeh Shahbazi 《环境科学学报(英文版)》2011,23(2):336-345
The concentration of carcinogenic polycyclic aromatic hydrocarbons (c-PAHs) present in the sediment and water of Peninsular
Malaysia as well as in the cockle Anadara granosa was investigated. Samples were extracted and analysed with gas chromatographymass
spectrometry. The concentrations of total carcinogenic polycyclic aromatic hydrocarbons (t-PAHs) were measured between 0.80
0.04 to 162.96 14.74 ng/g wet weight (ww) in sediment, between 21.85 2.18 to 76.2 10.82 ng/L in water samples and between
3.34 0.77 to 46.85 5.50 ng/g ww in the cockle tissue. The risk assessment of probable human carcinogens in the Group B2 PAHs
was calculated and assessed in accordance with the standards of the United States Environmental Protection Agency (US EPA). Case
I in the toxicity assessment analysed the cancer risk to consumers of Malaysian blood cockle. Case II assessed the risk of cancer
from exposure to PAHs from multiple pathways. The average cancer risk of case I and case II were found to be classifiable as unsafe
according to the US EPA standard. The cancer risk due to c-PAHs acquired by the ingestion of blood cockle was (8.82 0.54) 10??6
to (2.67 0.06) 10??2, higher than the US EPA risk management criterion. The non-cancer risks associated with multiple pathways in
Kuala Gula, Kuala Juru and Kuala Perlis were higher than the US EPA safe level, but the non-cancer risk for eating blood cockle was
below the level of US EPA concern. 相似文献
100.
Waris Kausar Hayat Lee Vannajan Sanghiran Mohamad Sharifah 《Environmental science and pollution research international》2021,28(35):47785-47799
Environmental Science and Pollution Research - The aim of this review is to highlight and provide an update on the current development of pesticide remediation methods, focusing on the utilization... 相似文献